Andreas Pflug <pgadmin(at)pse-consulting(dot)de> writes:
> I don't have the time now to review the impact, but this might make
> interpreting the log filename difficult or impossible, effectively
> corrupting pg_logdir_ls.
So if you want to use that, you use a format that it can cope with.
I don't see a problem.
(This is probably an OK reason to keep the default log_filename in
Y/M/D/H/M/S style, though, rather than ".epoch" style.)
regards, tom lane